SkyTrak 6036 Service Manual - Manual (Page 423)

9.71 Model 6036 Legacy
Electrical System
6. From the outside and front of the cab, remove the
windshield wiper blade arm nuts (Fig. 9-48, 2 and 3)
and washer (4) from the motor shaft (5).
7. Disconnect the washer hose (Fig. 9-50, 2) from
hose connector (3).
8. Remove the wiper arms (Fig. 9-48, 6), knurled driver
(7) and rubber cap (8) from the motor shaft (5).
9. Remove the metal hex jam nut (Fig. 9-48, 9) and
metal washer (10) from motor shaft.
10. Remove the motor mounting bolts (Fig. 9-48, 11), panto
adapter (12) and gasket (13) from the motor shaft.
Note: Retain all hardware removed from the wiper
assembly for possible reuse on the replacement motor
housing.
11. Remove the motor (Fig. 9-48,1) from the inside of
the cab.
b. Disassembly
DO NOT disassemble the motor. The motor is not
serviceable. Replace motor if found to be defective.
c. Cleaning and Drying
Without submerging the motor, clean the motor with an
approved solvent and dry with a clean, lint-free cloth.
d. Inspection and Replacement
1. Inspect the motor terminals for continuity. Replace
motor if continuity is not found. (Refer to Section
9.7.12, “Front Windshield Wiper Circuit and
Troubleshooting (Option).”)
e. Installation and Testing
Note: An assistant will be required for the installation of
the windshield motor.
Figure 9-49 Front Wiper Motor and Spacer Plate
1. Install all required hardware to the motor assembly.
Align spacer (Fig. 9-49, 1) and wiper motor bracket
(2) and apply masking tape (3) to hold the two
components together during installation.
2. Align motor (Fig. 9-48, 1) with cab mounting holes
and insert motor through cab.
3. Have an assistant insert gasket (Fig. 9-48,13),
panto adapter (12) onto to the motor shaft (5). Insert
bolts (11) through front cab holes and thread into
motor housing. Tighten bolts.
4. Install metal washer (Fig. 9-48, 10) and metal hex
jam nut (9). Tighten metal hex jam nut. Install rubber
cap (8) and knurled driver (7) onto the motor shaft.
Note: Align the wiper blade arm with the flat on the
motor shaft to ensure wiper stroke covers window area,
and it does not swipe past the glass area.
Figure 9-50 Wiper Arm Alignment
5. Install wiper blade arm (Fig. 9-50, 1) at 90° from the
motor shaft flat (4).
6. Install internal-tooth lockwasher (Fig. 9-48, 4) and
1/4" (3) and 3/8" (2) acorn nuts, and tighten.
7. Connect the cab harness connectors to windshield
wiper motor connectors.
8. Connect negative (-) battery cable at the negative
battery terminal.
9. Turn ignition key switch to the RUN position, and
operate windshield wiper in both LOW and HIGH
speeds to ensure proper operation and that correct
wiper travel is achieved.
1
MA8440
2
3
1
MA8450
2
3
90°
4